Kaitianite is an extremely rare titanium oxide mineral discovered within the Kaitian impact crater. It occurs as microscopic, opaque metallic grains associated with high-pressure impactites and is primarily of interest for advanced mineralogical study.

Hardness
6
Mohs
Transparency
Opaque

Is this kaitianite?

2-step field check

Run through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.

  • 1
    Test the hardness
    Try to scratch kaitianite with a known reference. Kaitianite sits at Mohs 6, softer than the next harder reference, harder than the previous one.
  • 2
    Look at form & habit
    Crystal system: monoclinic. Typical habit: anhedral to subhedral grains.

Often confused with

Kaitianite vs. its common look-alikes, and how to tell them apart in the field.

Often found alongside kaitianite

Minerals reported to co-occur with kaitianite. Spotting these in float or country rock is a strong cue you are in the right ground.

All properties

Chemical formula
Ti₂TiO₅
Mohs hardness
6
Density
4.29 g/cm³
Transparency
Opaque
Crystal system
Monoclinic
Crystal habit
Anhedral to subhedral grains
Cleavage
None
Rarity
Rare
Uses
Collector, Scientific research
Host rock
In a CV3 carbonaceous chondrite meteorite

Where rockhounds find kaitianite

Classic worldwide localities

  • Allende CV3 carbonaceous chondrite meteorite (fallen near Pueblito de Allende, Chihuahua, Mexico on February 8th, 1969)

Field-hunting tip

Where it forms: In a CV3 carbonaceous chondrite meteorite. If you start seeing tistarite, rutile, ti-xifengite in float, you are in the right ground. Typical habit: anhedral to subhedral grains. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify kaitianite?+
Mohs hardness is 6.
Where is kaitianite found?+
Notable localities include Allende CV3 carbonaceous chondrite meteorite (fallen near Pueblito de Allende, Chihuahua, Mexico on February 8th, 1969).
What rocks look like kaitianite?+
Kaitianite is most often confused with Ilmenite, Hematite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with kaitianite?+
Kaitianite commonly co-occurs with Tistarite, Rutile, Ti-xifengite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does kaitianite form in?+
Where it forms: In a CV3 carbonaceous chondrite meteorite. Working float back to the host body is the standard way to chase a fresh occurrence.
What is kaitianite used for?+
Kaitianite is used in collector, scientific research.

Find kaitianite on the map

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